Gonatopus harteni (Olmi, 1987)

Olmi, Massimo, Copeland, Robert S. & Noort, Simon Van, 2019, Dryinidae of the Afrotropical region (Hymenoptera, Chrysidoidea), Zootaxa 4630 (1), pp. 1-619 : 431

10. Gonatopus harteni (Olmi, 1987)

( Figs 172E, F , 173B , 174C )

Pseudogonatopus harteni Olmi 1987a: 438 .

Gonatopus harteni (Olmi) : Olmi 2006: 45; Guglielmino & Olmi 2006: 44; Olmi 2009b: 459.

Description. ♀. Apterous; body length 2.0– 3.2 mm. Head black, except mandible, anterior region of frons and clypeus testaceous; antenna brown, except scape and part of flagellomere 1 testaceous. Mesosoma black, except pronotum brown, distal extremity of propodeal declivity and most part of mesoscutum testaceous (anterior margin of mesoscutum darkened); petiole black; metasoma black; legs testaceous, except coxae and clubs of femora partly black. Antenna clavate; antennomeres in following proportions: 6:4:10:7:5:5:5:5:4.5:6.5. Head shiny, unsculptured, except occiput granulate; frontal line complete; occipital carina absent; POL = 1.5; OL = 2; OOL = 7. Palpal formula 4/2. Pronotum shiny, bare, crossed by strong transverse impression, with collar unsculptured and disc slightly granulate. Mesoscutum granulate, without lateral pointed apophyses. Mesoscutellum unsculptured. Metanotum flat, granulate, about coplanar to mesoscutellum; sides of metanotum rounded. Metapectal-propodeal disc shiny, slightly granulate, with track of median longitudinal furrow; propodeal declivity, mesopleuron and metapleuron transversely striate. Meso-metapleural suture obsolete. Protarsomeres in following proportions: 13:3:4:12:18. Enlarged claw ( Figs 172E, F ) with one large subapical tooth and one row of five lamellae. Protarsomere 5 ( Figs 172E, F ) with two rows of 17–18 lamellae; apex with 5–6 lamellae. Tibial spurs 1/0/1.

♂. Fully winged; body length 1.6–1.7 mm. Head black, except mandible testaceous; antenna brown; mesosoma and metasoma black; legs brown, except tarsomeres 1–4 whitish. Antenna filiform; antennomeres in following proportions: 2:3:4:4:4:3.5:3.5:3.5:3.5:4.5; antennomere 3 less than 3 × as long as broad (4:2). Head dull and granulate; clypeus very prominent, shallowly emarginated, sticking out as bill ( Fig. 174C ); frontal line absent; occipital carina absent; POL = 5; OL = 3; OOL = 4; vertex with two oval shiny areas situated between lateral ocelli and eyes (areas not anteriorly surrounded by high carina). Palpal formula 4/2. Mesoscutum shiny, granulate. Notauli incomplete, reaching approximately 0.75 × length of mesoscutum. Mesoscutellum and metanotum shiny, unsculptured. Metapectal-propodeal disc shiny, unsculptured, with median longitudinal furrow; propodeal declivity unsculptured. Forewing hyaline, without dark transverse bands; distal part of 2r-rs&Rs vein longer than proximal part (10:6). Dorsal process of paramere ( Fig. 173B ) long and with broad apex. Tibial spurs 1/1/2.

Material examined. Types: ♀ holotype: CAPE VERDE ISLANDS: Santiago Island , São Jorge dos Orgãos, 19.XI.1985, on lucerne, A. van Harten leg. ( AMNH) . Paratypes: same locality label as holotype, 2♂♂ ( AMNH) . Other material: GAMBIA: Kombo North District , Abuko Nature Reserve, 10.XI.1992, 1♀ ( ZIL) . SOUTH AF- RICA: KwaZulu-Natal , Nhlazatshe, NNW Denny Dalton, roadside S of hill, 28°11’S 31°12’E, 1000 m, 1.XII.1999, ex emergence box with stems of Mikania capensis , DEL 12.03, O.C. Neser, J. Balciunas & Grobbelaar leg., 1♀ ( SANC) ; Western Cape , near George, N 12- Road to Montagu Pass junction, C. 25.I.2003, B. 27.I.2003, Sf. 19.II.2003; C. 25.I.2003, B. 28.I.2003, Sf. 19.II.2003; M. Olmi reared from Syndelphax capellana (Jacobi) , 2♀♀ ( MOLC) .

Hosts. Delphacidae ( Guglielmino et al. 2013) : in South Africa: Syndelphax capellana (Jacobi) .

Distribution. Cape Verde Islands, Gambia, South Africa.

Remarks. The ♀ mesosoma of Gonatopus festivus Olmi can vary in colour, from totally testaceous to partly black or brown. If the colour is partly black or brown, ♀♀ of G. festivus can be confused with G. harteni Olmi. In this case, ♀♀ of these two species are indistinguishable. However, the two species are distinct, because their ♂♂ show strong differences.

Figures

FIGURE 172. Chelae of Gonatopus species. A: G. comorensis Olmi, Copeland & van Noort sp. nov.; B: G. festivus Olmi, holotype; C: G. fisheri Olmi, holotype; D: G. ghanensis (Olmi), holotype; E, F: G. harteni (Olmi), holotype (E) and ♀ from South Africa, N12-road to Montagu Pass Junction (F). Scale bar: A, B: 0.10 mm; C, D, F: 0.08 mm; E: 0.06 mm.

FIGURE 173. ♂ genitalia of Gonatopus species. A: G. festivus Olmi, paratype. B: G. harteni (Olmi), paratype. C: G. niassensis Olmi, paratype. D: G. ruens (Olmi), paratype. E: G. similis Brues, ♂ from La Reunion. F: G. vannoorti Olmi, paratype. Scale bar: A, F: 0.11 mm; B: 0.08 mm; C: 0.06 mm; D: 0.09 mm; E: 0.05 mm.

FIGURE 174. Gonatopus species of group 2. A, B: G. fisheri Olmi, mesosoma of ♀ holotype in dorsal (A) and lateral (B) view. C: G. harteni (Olmi), head in frontal view of ♂ paratype. D–F: G. jacksoni Olmi, ♀ holotype: head in frontal view (D); mesosoma in dorsal (E) and lateral (F) view. G, H: G. perkinsiellavorus Benoit, ♀ holotype: mesosoma in dorsal (G) and lateral (H) view. I, M: G. ruens (Olmi): mesosoma of ♀ holotype in dorsal view (I); ♂ paratype in dorsal view (M). J–M: G. similis Brues: mesosoma of ♀ holotype in dorsal (J) and lateral (K) view; head of ♀ holotype in frontal view (L). Scale bar: A, B, F: 0.75 mm; C: 0.10 mm; D: 0.33 mm; E, I: 0.77 mm; G, H: 0.87 mm; J, K: 0.67 mm; L: 0.23 mm; M: 1.15 mm.